Add CheckBuilder::from

host/build.gradle

@@ -27,6 +27,7 @@ module {
         requires 'org.openjdk.skara.test'
         requires 'org.junit.jupiter.api'
         requires 'jdk.httpserver'
+        opens 'org.openjdk.skara.host' to 'org.junit.platform.commons'
         opens 'org.openjdk.skara.host.network' to 'org.junit.platform.commons'
         opens 'org.openjdk.skara.host.github' to 'org.junit.platform.commons'
     }

host/src/main/java/org/openjdk/skara/host/CheckBuilder.java

@@ -53,6 +53,28 @@ public static CheckBuilder create(String name, Hash hash) {
         return new CheckBuilder(name, hash);
     }
 
+    public static CheckBuilder from(Check c) {
+        var builder = new CheckBuilder(c.name(), c.hash());
+        builder.startedAt = c.startedAt();
+        builder.status = c.status();
+        builder.annotations = c.annotations();
+
+        if (c.title().isPresent()) {
+            builder.title = c.title().get();
+        }
+        if (c.summary().isPresent()) {
+            builder.summary = c.summary().get();
+        }
+        if (c.completedAt().isPresent()) {
+            builder.completedAt = c.completedAt().get();
+        }
+        if (c.metadata().isPresent()) {
+            builder.metadata = c.metadata().get();
+        }
+
+        return builder;
+    }
+
     public CheckBuilder metadata(String metadata) {
         this.metadata = metadata;
         return this;

host/src/test/java/org/openjdk/skara/host/CheckBuilderTests.java

@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package org.openjdk.skara.host;
+
+import org.openjdk.skara.vcs.Hash;
+
+import java.time.ZonedDateTime;
+import java.util.List;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+class CheckBuilderTests {
+    @Test
+    void testFrom() {
+        var hash = new Hash("0".repeat(40));
+        var name = "test";
+        var title = "title";
+        var summary = "summary";
+        var metadata = "metadata";
+        var annotation = CheckAnnotationBuilder.create("README", 0, 1, CheckAnnotationLevel.NOTICE, "Message")
+                                               .build();
+        var startedAt = ZonedDateTime.now();
+        var completedAt = ZonedDateTime.now();
+        var success = true;
+
+        var existing = CheckBuilder.create(name, hash)
+                                   .title(title)
+                                   .summary(summary)
+                                   .metadata(metadata)
+                                   .annotation(annotation)
+                                   .startedAt(startedAt)
+                                   .complete(success, completedAt)
+                                   .build();
+        var dup = CheckBuilder.from(existing)
+                              .build();
+
+        assertEquals(existing.name(), dup.name());
+        assertEquals(existing.hash(), dup.hash());
+        assertEquals(existing.status(), dup.status());
+        assertEquals(existing.startedAt(), dup.startedAt());
+        assertEquals(existing.completedAt(), dup.completedAt());
+        assertEquals(existing.title(), dup.title());
+        assertEquals(existing.summary(), dup.summary());
+        assertEquals(existing.metadata(), dup.metadata());
+        assertEquals(existing.annotations(), dup.annotations());
+
+        var newTitle = "new title";
+        var newSummary = "new summary";
+        var newMetadata = "new metadata";
+        var newAnnotation = CheckAnnotationBuilder.create("FILE", 0, 1, CheckAnnotationLevel.NOTICE, "Message")
+                                                  .build();
+        var newStartedAt = ZonedDateTime.now();
+        var newCompletedAt = ZonedDateTime.now();
+        var newSuccess = false;
+
+        var modified = CheckBuilder.from(existing)
+                                   .title(newTitle)
+                                   .summary(newSummary)
+                                   .metadata(newMetadata)
+                                   .annotation(newAnnotation)
+                                   .startedAt(newStartedAt)
+                                   .complete(newSuccess, newCompletedAt)
+                                   .build();
+
+        // existing check should not have changed
+        assertEquals(dup.name(), existing.name());
+        assertEquals(dup.hash(), existing.hash());
+        assertEquals(dup.status(), existing.status());
+        assertEquals(dup.startedAt(), existing.startedAt());
+        assertEquals(dup.completedAt(), existing.completedAt());
+        assertEquals(dup.title(), existing.title());
+        assertEquals(dup.summary(), existing.summary());
+        assertEquals(dup.metadata(), existing.metadata());
+        assertEquals(dup.annotations(), existing.annotations());
+
+        // modified should have new values except name and hash and inherit annotations
+        assertEquals(existing.name(), modified.name());
+        assertEquals(existing.hash(), modified.hash());
+        assertEquals(newStartedAt, modified.startedAt());
+        assertEquals(newCompletedAt, modified.completedAt().get());
+        assertEquals(newTitle, modified.title().get());
+        assertEquals(newSummary, modified.summary().get());
+        assertEquals(newMetadata, modified.metadata().get());
+        assertEquals(List.of(annotation, newAnnotation), modified.annotations());
+    }
+}